Abstract
In bacteria, the processing of double-strand DNA breaks is mediated by the RecBCD, AddAB and AdnAB complexes. These multisubunit helicase-nuclease machines resect the DNA ends and load RecA protein to initiate homologous recombination. Recent studies have revealed fascinating insights into the molecular mechanisms of this process and the evolution of these machines.
Publication types
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Research Support, Non-U.S. Gov't
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Review
MeSH terms
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Bacteria / enzymology*
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Bacteria / genetics
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DNA Breaks, Double-Stranded*
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DNA Repair Enzymes / metabolism*
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DNA Repair*
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DNA, Bacterial / genetics*
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DNA, Bacterial / metabolism
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Evolution, Molecular
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Exodeoxyribonuclease V / metabolism*
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Exodeoxyribonucleases / metabolism*
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Homologous Recombination
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Models, Biological
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Models, Molecular
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Rec A Recombinases / metabolism
Substances
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DNA, Bacterial
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Rec A Recombinases
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Exodeoxyribonucleases
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AddAB enzyme
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Exodeoxyribonuclease V
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DNA Repair Enzymes